Vapor-stove.



No. 656,792. Patented Au C. J SEARCH- 9- 28, |900.

VAPOR STDVE.

(No model.)4 (Application filed Feb. 27, 1900.)

Gi i I4.

Tn: Nonms PETERS co., PHOTO-Lama. wAsHmGroN, o. c.V

CHARLES J. SEARCH, OF NEW YORK, N. Y.

VAPOR-STONE.

SPECIFICATION forming part of Letters Patent No. 656,792, dated August 28, 1900. asparagine@ February 27,1000. semi No. 6,070. (No man.)

To all' whom t may concern.;

Be it knownthat I, CHARLEs J. SEARCH, a citizen of the United States, and a resident of the borough of Brooklyn, in the city and State of New York, have invented a new and useful Improvement in Vapor-Stoves, of `which the following is a specification.

Myinvention relates to animprovement in vapor-burners in which the kerosene or the hydrocarbon oil from which the vapor is to be formed maybe fed either under its own head or under pressure.

One object of my invention is to provide an improved structure comprising inner and outer hollow cylindrical casings, the inner casing being perforated from its top a considerable distance down toward its bottom, the main air-inlet openings in the inner casing being located at or near the plane of the burner proper and the air-inlet openings in the outer casing being locatedat or below the plane of the main inlet-openings in the inner casing. i f

A further object is to provide means for deiiecting the heat as it passes upwardly through the top of the inner casing, so as to secure a uniform heat over an extended surface instead of a concentrated heat at one point.

A still further object is to provide an auX- iliary vaporizer, located within theinner casing, whereby a portion of the heat may be utilized to vaporize an auxiliary supply of oil for use wherever required.

A practical embodiment of my invention is represented in the accompanying drawings, in which l Figure l represents a side View of my im! proved burner.` Fig. 2 represents a vertical central section through the same. Fig. 3 is a top plan View, and Fig. 4 is `a transverse section on the plane of the line 4: at of Fig. 2 looking toward the bottom of the burner.

The burner comprises an outer hollow cylindrical shell or casing A and an inner hollow cylindrical shell or casingB, concentric to the outer casing and spaced therefrom. The outer casing A is Vprovided at its bottom with a suitable base d, provided` with an lupwardly-extended annular flange d', which snugly engages the lower end of the body of the casing A and closes the sameA The inner hollow casing B is perforated from its open top for a considerable distance downwardly ltoward its bottom, which perforated portion is denoted by b. The bottom of the hollow casing B is closed by a cup-shaped base b', having its uprising annular ange b2 snugly engaged with the bottom of the body portion ner hollow casing B. The bottom of the inner hollow casing B is held in position spaced from the sides and above the bottom of the outer easing by providing the cup-shaped base b/ with a downwardly-extended central tube b3, which has a screw-threaded engagement with the base d of the outer casing.

The burner proper is denoted by D, and it is mounted within the inner casing B near its bottom, which burner'may be of any wellknown or approved form. A vaporizer-frame E is located within the inner hollow casing a short distance above the burner D, which vaporizer-frame preferably is located near the lower end of the perforated portion b of the casing. An oil-supply tubeor pipe d leads from a source of oil-supply (not shown) through the outer and inner casing to the vaporizer-frame E. A pipe or tube d' leads from the vaporizer-frame to the burner proper.

The inner casing is provided with a plurality of main air-inletv openings b4, located at or near the plane of the burner proper,

and the outer casing A is provided at or be? low the plane of the openings h4 with a plurality of air-inlet openings a2. The amount of air to be admitted through the openings b4 is accurately controlled by means of a cylindrical damper F, having an annular series of openings f therein, which damper is provided with a handle f which proj eets through the outer casing `A imposition to be easily grasped by the operator. r

IOO

IOv

To deflect the heat as it escapes from the top of the inner casing, I provide a pair of removable cone-shaped detlectors, the lower one being denoted by Gr and the upper one by H. This lower detlector G is provided with a plurality of legs g, which are iitt-ed to enter suitable recesses c2 in the annular ring C, the bottom of the deilector when in position being spaced a slight distance above the top of the annular ring, so as to leave an open communication to the air between thedeliector and ring.` The deiiector G is provided with a central opening g. The upper cone-shaped defleetor H is spaced above the opening g in the lower deflector by means of a plurality of legs h, which rest upon the top of the deflector G. These legs are held in position, preferably, by providing the top of the deiiector G with an annular uprising flange g2. The top of the deiieetor H is provided with a suitable liook or eye h', so that the upper deflector may be removed to permit the auxiliary heating iiuid to be poured into the cupshaped base bt of the inner casing B.

An auxiliary vaporizing device is located within the inner casing B a short distance above. the vaporizer-frame E. This auxiliary vapori/zing device comprises a horizontally-disposed pipe-coil I, having its ends t' el projected through the walls of the inner casing; lAn auxiliary oil-supply pipe .I leads from a source of supply (not shown) from the exterior through the wall of the outer casing A and is secured to the end t of the coil by a suitable couplingj. A vapor-conveying pipe K is suitably connected by a coupling 7s with the other end i of the coil and leads therefrom to any point where it is desired to use the vapor. Inl the present instance I have shown the pipe K as being provided with two branches, the one 7c ot` which leads outwardly through the wall of the outer casing and the lower branch 7a2 of which leads inwardly linto communication with the burner proper, D. I have shown the branch pipe 7c as provided with a valve 7e3 and have shown the branch 7a2 as being provided with another valve 7a4. By manipulating the valves 7a3 7a4 the vapor may be led from the auxiliary vaporizer either outwardly to any desired point or inwardly to form a reinforce for the burner proper, D. The auxiliary coil I, being located intermediate of the main vaporizer E and the surface against which the flame plays above the casing, whether the surface be deflectors or any other surface to be heated, receives when the flame is extinguished radiatedy heat both from above and below, and this serves to maintain the said auxiliary coil at a vaporizing temperature for a considerable length of time after the main vaporiZer-coil has reached a temperature below the vaporizing-point. 'The length of time at which the vaporizer-coil will remain at a predetermined temperature is still further extended by making the walls of the pipe which forms the auxiliary vaporizingcoil I very thick as compared with the diameter of the bore.

I have represented Ain the accompanying drawings in broken lines a suitable stand which might be used on the top of the burner as a support for heating or cooking utensils; but this forms no part of the present invention.

In operation the burner is started by lirst removing the upper detlector H and pouring the auxiliary heating .fluid therethrough into the interior of the inner easing B. This auxiliary heating iiuid is then ignited, and its heat will be sufficient to start the vaporiza tion of the main oil-supply and then ignitev the vapor as it issues from the burner proper. The air which passes in from the exterior through the openings a2 in the outer hollow casing is divided, some of it passing through the openings b4 in the lower portion of the inner hollow casing and the balance of it passing upwardly between the two casings and thence through the perforated portion b into contact with the flame at this point. The amount of air to be admitted through the openings b4 may be accurately determined by the damper F. By this means I am enabled to adjust the amount of air to be admitted at the plane of the burner and at the upper portion of the casing, so as to obtain the greatest amount of heat possible with a given supply of oil. The heat within the casing B is so intense that it will also keep the coil I of the auxiliary vaporizer at a red heat, the deflector G serving to contine the iiame more or less, causing it to roll around within the top of the casing B. This heat will rapidly and thoroughly vaporize the auxiliary supply of oil, .which may be led from the original reservoir, which feeds the mainV vaporizer, or from a separate reservoir, if so desired. The de lectors at the top of the casings also serve to spread the iiame which escapes from the top of the inner casing over a large area, so as to insure practically the same amount of heat at the 'periphery of the base of a heating or cooking utensil as at the center. The auxiliary vaporizer I will remain heated for a considerable time after the ame has been extinguished, and when the vapor from the auxiliary vaporizer is led to the burner the said auxiliary supply of vapor may be ignited and utilized for again starting the burner, thus obviating the-necessity of pouring in an auxiliary heating uid into the interior of the casing for starting the main burner unless the tiame has been extinguished for a considerable length of time.

The amount of vapor which is permitted to escape from the burner proper may be accurately regulated in any well-known and approved manner. A

It is evident thaty slight changes might be resorted to in the form and arrangement of the several parts without departing from the IOO IIO

IIS

spirit and scope of my invention. l-Ience I do not wish to limit myself strictly to the structure herein set forth; but

l. A vapor-burner comprising the burner proper, an inner hollow casing surrounding the burner provided with air-inlet openings at or near the plane of the burner and. an outer hollow casing surrounding and spaced ro from the inner hollow casing, the upper portion of the space between the inner and outer casings being closed, the said outer casing having air-inlet openings at or below the plane of the air-inlet openings of the inner casing,

substantially as set forth.

2. In a vapor-burner aburner proper, an inuerhollow casing surrounding the burner havingair-inlet openings at or near the plane of the burner, the said inner casing having its zo' upper portion perforated, an outer hollow easing'surrounding and spaced from the inner casing, the upper part of the space between the inner and outer casings being closed, the said outer casing having air-inlet openings at or below the plane of the burner for feeding air through the openings in the inner casing adjacent to the burner and also through the perforated portion of the inner casing, substantially as set forth.

3o 3. Avapor-burner comprising a hollow casin g, a burner proper and a main vaporizer located within the hollow casing, a body located above the main vaporizer against which the flame is intended to impinge,an auxiliary vaporizer located intermediate of the main vap` orizer and flame-impinged body, and independent of the main vaporizer, means for supplyin g liquid to the said vaporizers,and means for conveying the vapor from the auxiliary 4o vaporizer to the point of combustion, substantially as set forth.

4t. A vapor-burner comprising a hollow casing, a burner proper and a main Vaporizer located within the hollow casing, a body located above the main vaporizer against which the flame is intended toimpinge, an auxiliary vaporizer located intermediate of the main vaporizer and flame-impinged body, and inde-v pendent of the main vaporizer, means for sup'- plyingliquid to the said vaporizers,and means 5o for conveying the vapor from the auxiliary vaporizer to the point of combustion, the said auxiliary vaporizer being composed of a coil of pipe having thickened walls for retaining heat, substantially as set forth.

5. In avapor-burner, ahollow casin g closed at its bottom to form an auxiliary heatingiluid retainer, the said casing having an open top, a deiieotor located above and spaced from the top of the hollow casing, the said deflector 6o having a central opening therein, and a second removable d eector located above and spaced from the opening in the first-named deflector whereby the last-named deflector may be removed for permitting the auxiliary heating iiuid to be poured through the opening in the first-named deflector into the interior of the hollow casing, substantially as set forth.

6. In a vapor-burner,a burner proper,an in- 7o ner hollow casin g surrounding the burner having air-inlet openings at or near the plane of the burner, and having its upper portion perforated, an outer hollow casing surrounding and spaced from the inner casing and having air-inlet openings therein at or below the plane of the burner for feeding airthrough the openings in the inner casing adjacent to the burner and also through the perforated portion of the inner casing, the upper part of 8o the space between the inner and outer casings being closed and a damper for opening and closing the openings in the inner casing for regulating the amount of air to be fed through the said openings and through the perforated portion of the inner casing, substantially as set forth.

In'testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 23d day of Febru- 9o ary, 1900.

CHARLES J. SEARCH.

Witnesses: FREDK. HAYNEs,

EDWARD VIESER. 

